NETGEAR SRXN3205 - ProSafe Wireless-N VPN Firewall Wireless Router Reference Manual page 112

ProSafe Wireless-N VPN Firewall SRXN3205 Reference Manual
4. For the Phase 1 Negotiation Mode, check the Aggressive Mode radio box.
Figure 6-7
5. PFS should be disabled, and Enable Replay Detection should be enabled.
6. In the left frame, expand Authentication (Phase 1) and choose Proposal 1. The Proposal 1
fields should mirror those in the following figure. No changes should be necessary.
Figure 6-8
6-10 Virtual Private Networking Using IPsec
v1.0, October 2008